Pivoted door



R. KLANNER July 24, 1951 PIVOTED DOOR 2 Sheets-Sheet 1 Filed Nov. 28,1950 FIG? 2.

ATTORNEYJ y 4, 1951 R. KLANNER 2,561,627

PIVOTED DOOR Filed Nov. 28, 1950 '2 Sheets-Sheet 2 FIG. 4. I 9

the door is operated by "Application november zsi miseriesAustriaDbcemben22g1948-- This invention relates to pivotedwingdoors;having one-part wings or folding double: wings, and has' for its mainobject to. provide a door; so constructed that accurate-guide. ance ofthe wings is achieved during. thegopeningg door, as.'well as position,.1 while.

mechanism and. closing movements of the effective sealing in the closedthe space. requirements. are minimal.

Further and favourable objects will appear from the followingdescription.

It is already known to move the doorwings in such a manner, that theoutside and: inside edges slide on the legs of a right angle, for thepurpose of reducing the space requirements as compared withconventionaltype doors I t ,is also known still further to reduce thespa e requirements for the movement of the doorby-subdividing the doorwings into two elements of equal width, which are articulated to eachother,,the outer panel element of the door being swung intheconventional manner about its outside edge, whereas the inside edgeof the inner; panel element moves in the plane the door occupies whenextended or shu In order to achievethis movement, straight guides, orgears and chain, drives are used a ihe, the

straight guides have the disadvantage tha opening of the door by a fullright angle requires a stretched-out position, so that, especially whena mechanical drive, it is not possible to fully utilise the angle ofopening. The use of gearing and chains not only results in a complicatedconstruction but also in an imperfect guidance of the door, owing to theunavoidable play of the elements of the gears ing, especially of thechain. Both methods of operation have the disadvantage in common thatone edge of the door slides constantly on the sealing surface of thedoor frame so that the packing strip, which is indispensable for perfectsealing, oifers a high resistance to the movement and is, moreover,damaged within a short time and so entails frequent replacement.

According to the invention, the pivotal movement of the door wings iseffected by movable straight guides which are so arranged and whosemotion is controlled in such a manner that they never assume astretched-out position nor permit the inside door edge to slide on thepacking strip. In this way the disadvantages aforementioned are avoided,while the mechanism for operating the door is of simple construction.

Reference will now be had to the accompanying drawings in which Fig. 1is a broken front elevational view of a pivoted wing door havingone-part wings;

drag; like]. itb

1' er assembly takenon line 5-5 of Fig. 1.

door wings I are piv-.

2 isan end elevationof Fig. 1, looking into,

thele t sidethereof;

Fig. 3 is a diagrammatical view of. the one part wing door and itsaction during the opening, and closing movement;

Fig. .4 is a, diagrammatical view of a folding or, two-part wing,doondisclosing the movementof the parts of the door during the openingand closingthereof; and i ig. 5, is a cross-sectional view oftheguideroll- According to Fig. 3 the otally. supported in the framing ineyes 2 of levers or arms 3 which are disposed above and below thedoorwings I and are connected by pivotally supported. door-post tubes ,4mounted on "the framing. The bearing brackets for the guide rollers 5,which are attached outside the plane of the door and guided in the rail6 the ends of which aremounted in the framing, are fixed to the doorwings 'I. The levers 1 for operating the doorpost tub'esj4 consist ofdouble levers and are con nected bymeans of sliding members 8 with theguide rail '6, when they are operated, .e. g. by meansofthepiston ofthecompressed-air cylindefSthrough the double lever II] and the rod I i,the guiderail 6 performs a pivotal or sliding mntjfa'nd causes.thejinside edge of the door to perform the movement which is shown bydotted lines I 2, whereby the door, according to the invention, islifted from the frame packing or sealing surface 20 during the wholeopening and closing operation.

Fig. 4 shows a folding-wing door according to Fig. 3, which is providedwith the device according to the invention. The movement of the outerdoor 3a corresponds to that of the lever 3, that of the inner door Ia tothat of the door Wing I in Fig. 3. The door-post tubes 4 and the guiderollers 5 have exactly the same construction.

Separate guide rails 6a however, are provided for the left and righthand doors, respectively, and these guide rails are not movable inparallel but are pivoted about bearing pins I 3 mounted in the framing.They are operated in this case by means of the piston of the workingcylinder 9 through the double lever Illa and the tie link M, which isconnected direct to the left hand guide rail and through a slidingmember [5 to the right hand guide rail which comprises a break-joint ofthe well-known type. The dotted line In again indicates the movement ofthe inner door-edge and shows that in this case the door is also lifted,according to the invention, from the frame pac g during the whole of theopening and closing operations.

Fig. illustrates by way of example an embodiment of the guide rollerassembly 5 shown in Figs. 3 and 4. The assembly consists of twoco-axially mounted rollers l6, l1, which have crowned peripheries ofdifferent effective diamone side-face of theguide;

eters and ro'll between rail 6 andra second adjustable side face l8, thelarger roller I! in rolling contact with the fixed able side face asshown.

It will be appreciated that although which there is a door pivot atopposite vertical wing door mounted on a single pivot atone such edgeand adapted completely to seal the-door opening may similarly be guidedaccording to.

the invention. For instance, a pillar may be arranged centrally of thedoor opening in Figs. 3 and 4-. Further, the door pivots may be ar:

ranged on horizontal edges of the door openciated with the framing andthe door swing, a pivot post mounted in the framing, means piv-' otallyconnecting the door wing to the pivot post to cause the door to open andclose when the pivot post is actuated, power operated mechanismincluding levers connected to the pivot post to actuate the same, amovable guide rail mounted in the framing above the door wing andparallel thereto, the door wing and engaging the guide rail to guide thedoor wing in its movement, a lever connected to one of the levers of theoperating mechanism and to the guide rail to move the guide rail awayfrom the door wing so as to move the door wing bodily with respect tothe framing simultaneously with the initiation of the opening movementof the door wing whereby the door wing is separated from the sealingsurface to prevent wear thereof. 2. A pivoted door wing as set forth inclaim 1 wherein the means pivotally connecting the guide elementsmounted onside face and the smaller roller with the adjust-" 1 ofrollers,

10 the embodiments illustrated show constructions in eachof the twoedges of the door opening, a"

post comprises arms the door wing and lever is connected to door wing tothe pivot mounted above and below also the guide rail moving the pivotpost.

3. A pivoted door wing construction as set forth in claim 1 wherein theguide rail comprises a channel-shaped member having one adjustable sideand the guide elements comprise a one roller engaging one side of thechannel-shaped member and the second roller of the pair engaging theother side of the channel-shaped member.

'4. A pivoted door wing construction as set forth in claim 1 wherein themeans pivotally connecting the door wing to the pivot post comprises aninner panel which is directly conjoint, the pivot ,nected to the pivotpost and causes movement of "the outer panel upon actuation of the pivotpost.

5. A pivoted door wing construction as set forth in'claim 4 wherein theguide rail comprises two sections pivotally mounted in the framing ateach of their outer ends and with the inner ends connected together in apivotal breakof which is directly connected with one of the mechanism.

RUDOLF KLANNER.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS levers of'the power operating- Dec. 9, 1940

